SHAREHOLDERS' EQUITY (Details) - USD ($)										12 Months Ended
	Dec. 29, 2021	Nov. 22, 2021	Sep. 29, 2021	Aug. 31, 2021	Jun. 14, 2021	May 24, 2021	Mar. 30, 2021	Mar. 02, 2021	Aug. 08, 2017	Dec. 31, 2021	Dec. 31, 2020	May 28, 2021	Aug. 31, 2018	Aug. 31, 2016	Aug. 28, 2006	Jun. 30, 2004	May 19, 1998
Preferred Stock [Abstract]
Common stock, shares authorized (in shares)										99,000,000	99,000,000						100,000,000
Preferred stock, shares authorized (in shares)										1,000,000	1,000,000
Preferred stock, par value (in dollars per share)										$ 0.01	$ 0.01
Preferred stock, shares issued (in shares)										0	0
Preferred stock, shares outstanding (in shares)										0	0
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, authorized amount															$ 20,000,000
Stock repurchased since inception										$ 5,052,000	$ 5,933,000
Treasury stock repurchased (in shares)										200,115	351,581
Treasury stock repurchased, average cost per share (USD per share)										$ 26.76	$ 17.79
Shares issued due to exercise of stock options (in shares)										58,483
Shares issued as compensation for the work (in shares)										11,238
Sale of Stock, Number of Shares Issued in Transaction											294,117
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance										$ 25,972,000	$ 27,275,000
Ending balance										24,412,000	25,972,000
Dividends declared, price per share (USD per share)		$ 1.70		$ 0.20		$ 0.16		$ 0.16
Dividends	$ 3,300,000		$ 400,000		$ 300,000		$ 300,000			4,300,000	3,300,000
Class of Treasury Stock [Table]
Payments for Repurchase of Common Stock										$ 5,052,000	5,933,000
Common Stock, Dividends, Per Share, Declared - Quarterly Amount		$ 0.20
Stock Repurchase Program, Authorized Repurchase Price Per Share												$ 26.00
Common Stock, Dividends, Per Share, Declared - Special Amount										$ 1.50
June 2004 Plan [Member]
Equity, Class of Treasury Stock [Line Items]
Number of common shares authorized to be repurchased (in shares)																131,756
Stock repurchase program, authorized amount																$ 1,300,000
Stock repurchased during period, shares									112,672
August 2006 Plan
Equity, Class of Treasury Stock [Line Items]
Stock repurchase program, remaining authorized repurchase amount										$ 12,600,000			$ 500,000	$ 500,000
Stock repurchased since inception										1,500,000
May 28 2021 Tender Offer
Equity, Class of Treasury Stock [Line Items]
Number of common shares authorized to be repurchased (in shares)												211,538
Stock repurchased since inception										$ 4,500,000
Treasury stock repurchased (in shares)										171,433
Foreign Currency Translation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance										$ 4,793,000	3,435,000
Current-period change before reclassifications										(2,832,000)	1,358,000
Amounts reclassified from accumulated other comprehensive income (loss)										0	0
Income tax provision										0	0
Ending balance										1,961,000	4,793,000
Pension Postretirement Benefit Obligation
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance										357,000	322,000
Current-period change before reclassifications										0	0
Amounts reclassified from accumulated other comprehensive income (loss)										37,000	54,000
Income tax provision										(13,000)	(19,000)
Ending balance										381,000	357,000
Accumulated other comprehensive income
AOCI Attributable to Parent, Net of Tax [Roll Forward]
Beginning balance										5,150,000	3,757,000
Current-period change before reclassifications										(2,832,000)	1,358,000
Amounts reclassified from accumulated other comprehensive income (loss)										37,000	54,000
Income tax provision										(13,000)	(19,000)
Ending balance										$ 2,342,000	$ 5,150,000